The smallest number that both 21 and 23 can go into is 483.
To find the least number that must be added to 1056 to make it divisible by 23, first, we divide 1056 by 23, which gives us a quotient of 45 with a remainder of 21. Since 1056 is 21 more than a multiple of 23, we need to add ( 23 - 21 = 2 ) to 1056. Therefore, the least number that must be added to 1056 to make it exactly divisible by 23 is 2.
23 is a prime number.
19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.
The fraction 21/23 cannot be simplified. You could muliply both of them by the same number, and get a fraction like 42/46, but it's better to keep fractions simplified.
Put them in order from least to greatest then find the middle number. In this case there are two 23 and 29 if you need one number I forget the formula, sorry.
The Least Common Multiple (LCM) for 23 21 is 483.
To find the least common multiple of numbers there are two methods. #1 You list the multiples of each number. Identify the least number that is on both lists. #2 Find the common factors of the numbers. In this case their are no common factors because 23 is prime. Here's what you do: 1. Find the prime factorization of 21 and 23. 21=7*3 23=23 2. Take the factors and multiply them all together once because each one is only shown once. 7*3*23=? 3. 7 times 3 equals 21 times 23 is 483. LCM=483
It is: 483
23 is a prime number.
19 is a prime number. Its only factors are 1 and 19. 21 is a composite number. Its factors are 1, 3, 7, and 21. 23 is a prime number. Its only factors are 1 and 23.
966
21 is composite.
The fraction 21/23 cannot be simplified. You could muliply both of them by the same number, and get a fraction like 42/46, but it's better to keep fractions simplified.
Put them in order from least to greatest then find the middle number. In this case there are two 23 and 29 if you need one number I forget the formula, sorry.
23
19, 20, 21, 22, 23
21